Music-leaf turner.



W. ELLMAN. MUSIC LEAP TURNER.

APPLICATION FILED AUG. 21, 1914.

1,131,125. Patented Mar.9,1915.

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MUSIC LEAF TURNER.

APPLIUATION FILED AUG. 21, 1914.

Patented M21119, 1915.

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S Won/mu THE NORPI PETERS CO PHOTO LITHO wgsH/Nclprv. D cv WALTERELLMAN, OF LONG ISLAND, NEW YORK.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented Mar. 9, 1915.

Application filed August 21, 1914. Serial No. 857,913.

To alt whomit may concern:

Be it known that I, lVAL'rnn ELLMAN, a subject of the Czar of Russia,residing at Long Island, in the county of Queens and State of New York,have invented certain new and useful Improvements in Music- LeafTurners; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

The primary object of this invention is the provision of a music leafturner which shall be simple, conveniently portable and capable of beingoperatively positioned upon practically any construction or type ofmusical instrument or music stand.

Another object is the provision of a device of this character embodyingmeans whereby the pages of a musical composition may be successivelyturned during the rendition thereof.

Vfith these and other objects in view, the invention consists in thenovel construction, arrangement and formation of parts as will behereinafter specifically described, claimed and illustrated in theaccompanying drawings, in which:

Figure 1 represents a front elevation of the music stand, showing theapplication thereto of the improved music leaf turner. Fig. 2 representsan enlarged side elevation of the music leaf turner. Fig. 3 represents asectional view on the line 33 of Fig. 2. Fig. 4 represents a fragmentalsectional detail view through the frame structure of the turner, andFig. 5 represents a side elevation of the music leaf turner as appliedto a piano or similar musical instrument. Fig. 6 represents a fragmentaltop planview of the leaf turner.

Referring to the drawing in detail, wherein similar reference numeralsdesignate corresponding parts throughout the several views, the numeral7 indicates the body or frame structure of the music leaf turnerincluding front and rear walls 8 and 8* respectively, which arepreferably removably secured to the longitudinal edges of the base plate7 by screws 9 or equivalent means. A shaft 9 is rotatably mountedadjacent one end of the frame structure and projects laterally of thefront wall 8, as clearly illustrated in Fig. 2. The front wall 8 isenlarged, as indicated at 10, at the point Where the shaft 9 projectstherethrough and a set screw 11 is fitted into the enlargement 10 forlocking the shaft 9 against rotation. A plurality of arms 12 are formedwith enlarged inner ends 13 pivotally mounted upon the shaft 9. Theenlarged ends 13 of the arms are formed with recesses in which aremounted spiral springs 14 secured at one end to the shaft 9 and at theopposite end to the enlarged ends 13 of the arms for normally tending torotate said arms in the direction of the arrow in Fig. 3. The enlargedends 13 of the arms are further provided with teeth 15.

A plurality of locking members 17 are pivotally mounted on a shaft 18secured through the front and rear walls 8 and 8 of the frame structure.The locking members 17 are provided with angular ends 19 adapted tointerlock with teeth 15 to lock the arms 12 against swinging movement onthe shaft 9 under the influence of the springs 14. A disk 24 is mountedfor longitudinal sliding movement on a shaft 25 rotatably mounted in thefront and rear walls 8 and 8 of the frame structure and are preferablyrectangular in cross section and fitted within a similarly shapedaperture in the disk 24 to prevent rotation of the latter. A pair ofoppositely directed pins 26 project laterally from the side faces of thedisk 24 and are adapted, when said disk is rotated, to engage the freeends of the locking members 17 to release the pivoted arms 12. The disk24 is normally retained against the rear face of the front wall 8 of theframe structure by the tension of a spring 27 coiled about the shaft 25and engaged at its opposite terminals against the disk and the rear wall8. A shaft 28 is mounted for longitudinal sliding movement through theframe structure and is normally retained in forwardly extended positionby the tension of a spring 29 engaged at its opposite extremitiesagainst a button 30 formed at the forward extremity of said shaft andthe front face of the front wall 8 of the frame structure. A collar 31is rigidly secured to the shaft 28 between the front and rear walls 8and 8 of the frame and is adapted to engage the disk 24 to move thelatter to initial position when the shaft 28 is moved rearwardly.

As illustrated in Figs. 1 and 2 the music leaf turner may be attached tothe standard 32 of a music stand by a bracket designated generally bythe numeral 33 and including r1 i o a longitudinally slotted bar 34having a recessin one end adapted to receive the standard 32 andcarrying at its opposite end a plate 35 secured to the base plate 7 andadjustably secured to the bar 31 by a bolt 36. A set screw 37 is fittedin the recessed end of the bar 34 and is adapted to engage the standard32 of the music stand to lock the bracket in adjusted position thereon.A guide 38 is secured to the front plate 8 of the frame structure and isformed with an aperture slidably receiving the vertically disposed bar39 having the lower end 40 directed outwardly to provide a finger gripand secured at its upper terminal to a lever 41 rigidly secured to theshaft 25 and also connected with the frame structure by a spring 43normally tending to rock said 1ever to raise the operating bar 39.

WVhile I have here shown only two turner arms 12 it will be understoodthat as many arms as needed may be utilized without greatly increasingthe size and weight of the turner.

In use, the shaft 28 is moved inwardly carrying therewith the disk 24.The arms 12 are turned to the right, to the position illustrated in fulllines in Fig. 3, and when locked by the engagement of the angular ends19 of the locking members 17 with the teeth 15 of the enlarged ends ofsaid arms,in locked position, the ends 21 of the locking members aredisposed in the path of the disk 21 and prevent the latter fromreturning to its forward position under the influence of the spring 27.The free extremities of the arms 12 are subsequently engaged behind thepages 45 of the musical composition. To turn the page, the operating bar39 is depressed, swinging the lever 41 and rocking the shaft 25 to whichsaid lever is keyed. The disk 24: is rotated with the shaft 25 and thepins 26 of said disk engage and depress the free terminal of the lockingmember 17 simultaneously raising the angular ends 19 thereof andreleasing the rearmost arm 12 and permitting it to move leftward underthe influence of the coil spring 1 1. The arm 12 carries with it thepage 45 of music behind which it is engaged, and the end 21 of thelocking member 17 associated with said rearmost arm 12 is movedupwardly, after operation of said arm, by the tension of the spring 20.As the end 21 of said locking member is moved upwardly it is disengagedfrom the disk 24 which is permitted to move forwardly under theinfluence of the spring 27 and engage the free end 21 of the lockingmember associated with the arm 12. In this position, the disk 24 andpins 26 release the next arm 12 when the operating bar 39 is againactuated, the disk 24 continuing to move forwardly at each operation ofthe bar 39 until each of the arms 12 is released. When desired, anangular securing bracket 46 may be substituted for the bracket 33 forsecuring the music leaf turner to pianos and similar musicalinstruments. Further, if desired, the operating bar 39 may be connectedwith a pedal 46 by a rod 47 for operating the music leaf turner by foot.

What I claim is:

1. A music leaf turner comprising a frame structure, a plurality of armspivotally mounted in said frame structure, means normally tending toswing said pivoted arms, a plurality of locking members pivotallymounted in said frame structure for locking said pivoted arms againstswinging movement, a shaft rotatably mounted in said frame structure, adisk non-rotatably mounted on said shaft and movable successivelyagainst said locking members, means normally tending to move said diskforwardly on said shaft into engagement with said locking members, andmeans on said disk for engaging and releasing said locking members.

2. A music leaf turner comprising a frame structure, a plurality of armspivotally mounted in said frame structure, means normally tending toswing said pivoted arms, a plurality of locking members pivotallymounted in said frame structure, means normally tending to swing saidpivoted arms, a plurality of locking members pivotally mounted in saidframe structure for locking said pivoted arms against swinging movement,a shaft rotatably mounted in said frame structure, a disk non-rotatablymounted on said shaft and slidable longitudinally on the latter, aspring normally tending to move said disk into engagement with the freeends of said locking members, said locking members being adapted, whenreleased, to swing out of the path of said disk to permit the latter tomove forwardly under the influence of the spring into engagement withthe neXt locking member, and means on said disk adapted to engage andrelease said locking members.

In testimony whereof I afiix my signature in presence of two witnesses.

' VVALTER ELLMAN.

Witnesses:

JOHN F. KELLERMANN, Luau RosENznRRrc.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Patents. Washington, D. C.

